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upscSyllabus & Exam Pattern 2026Updated: Sep 3, 2026

Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 Syllabus 2026 & Exam Pattern

Get the complete subject-wise syllabus, exam pattern, questions distribution, total marks, and marking scheme for Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 conducted by upsc. Download the official syllabus PDF below.

Total Marks
3000 Marks
Duration
2 Hours
Mode of Exam
CBT / Written

Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 Exam Pattern 2026

Subject-wise questions, maximum marks, and duration distribution

Subject / SectionNumber of QuestionsMaximum MarksDuration
General Studies (Preliminary Paper-I)-1002 Hours
Geology/Hydrogeology (Preliminary Paper-II, Stream-I)-3002 Hours
Geophysics (Preliminary Paper-II, Stream-II)-3002 Hours
Chemistry (Preliminary Paper-II, Stream-III)-3002 Hours
Geology Paper-I (Main, Stream-I & IV)-2003 Hours
Geology Paper-II (Main, Stream-I & IV)-2003 Hours
Geology Paper-III (Main, Stream-I)-2003 Hours
Geophysics Paper-I (Main, Stream-II)-2003 Hours
Geophysics Paper-II (Main, Stream-II)-2003 Hours
Geophysics Paper-III (Main, Stream-II)-2003 Hours
Chemistry Paper-I (Main, Stream-III)-2003 Hours
Chemistry Paper-II (Main, Stream-III)-2003 Hours
Chemistry Paper-III (Main, Stream-III)-2003 Hours
Hydrogeology Paper-III (Main, Stream-IV)-2003 Hours

Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 Topic-Wise Syllabus 2026

Detailed breakdown of topics and concepts asked in each subject

General Studies (Preliminary Paper-I)

Official Curriculum

Current events of national and international importance; History of India and Indian National Movement; Indian and World Geography - Physical, Social, Economic Geography of India and the World; Indian Polity and Governance - Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues etc.; Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives etc.; General issues on Environmental Ecology, Bio-diversity and Climate Change - that do not require subject specialisation; General Science.

Geology/Hydrogeology (Preliminary Paper-II)

Official Curriculum

Physical Geology (Principle of uniformitarianism; origin, differentiation and internal structure of the Earth; origin of atmosphere; earthquakes and volcanoes; continental drift, sea-floor spreading, isostasy, orogeny and plate tectonics; geological action of rivers, wind, glaciers, waves; erosional and depositional landforms; weathering processes and products); Structural Geology (Stress, strain and rheological properties of rocks; planar and linear structures; classification of folds and faults; Mohr's circle and criteria for failure of rocks; ductile and brittle shear in rocks; study of toposheets, V-rules and outcrop patterns; stereographic projections of structural elements); Mineralogy (Elements of symmetry, notations and indices; Bravais lattices; chemical classification of minerals; isomorphism, polymorphism, solid solution and exsolution; silicate structures; physical and optical properties of common rock forming minerals- olivine, garnet, pyroxene, amphibole, mica, feldspar and quartz); Igneous Petrology (Magma types and their evolution; IUGS classification of igneous rocks; forms, structures and textures of igneous rocks; applications of binary and ternary phase diagrams in petrogenesis; magmatic differentiation and assimilation; petrogenesis of granites, basalts, komatiites and alkaline rocks (carbonatite, kimberlite, lamprophyre and nepheline syenite)); Metamorphic Petrology (Limits, types and controls of metamorphism; metamorphic structures- slate, schist and gneiss; metamorphic textures- pre, syn and post tectonic porphyroblasts; concept of metamorphic zone, isograd and facies; geothermal gradients, facies series and plate tectonics); Sedimentology.

Frequently Asked Questions

Common queries regarding Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 syllabus, pattern, and preparation

What is the exam pattern for Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 2026?

The exam pattern consists of multiple-choice objective questions testing subject knowledge, reasoning, and aptitude according to official guidelines.

Is there negative marking in this exam?

Yes, standard recruitment guidelines apply negative marks (generally 1/3rd or 1/4th marks deducted per wrong answer). Candidates should only attempt questions they are confident about.

How can I download the official Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027 syllabus PDF?

You can click the "Download Official PDF" button in the header of this page to view and save the official commission notification containing the complete syllabus.

Ready to Apply for Union Public Service Commission (UPSC) Combined Geo-Scientist Examination Recruitment 2027?

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